21tech.com - robtex.com
21tech.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Same first word
Similar names
tech21.ru |
tech21.de |
tech12.com |
12tech.io |
tech21.com.cn |
etch21.com |
tech21.nl |
tech21.com |
tech21.co.uk |
tech21.cn |
tech21.uk.com |
tech12.co.il |
DNS History
13 records (7 active, 6 former)
●NSns-1435.awsdns-51.org2019-03-20 → 2026-03-10 · 3 obs
● 2019-03-20 19:29:44
● 2026-03-10 14:10:52
●NSns-1578.awsdns-05.co.uk2019-03-20 → 2026-03-10 · 3 obs
● 2019-03-20 19:29:44
● 2026-03-10 14:10:52
●NSns-28.awsdns-03.com2019-03-20 → 2026-03-10 · 3 obs
● 2019-03-20 19:29:44
● 2026-03-10 14:10:52
●NSns-670.awsdns-19.net2019-03-20 → 2026-03-10 · 3 obs
● 2019-03-20 19:29:44
● 2026-03-10 14:10:52
○NSns93.worldnic.com2015-07-25 → 2017-02-10 · 4 obs
● 2017-02-10 10:09:40
○ 2019-03-20 19:29:44
○ 2026-03-10 14:10:52
○NSns94.worldnic.com2015-07-25 → 2017-02-10 · 4 obs
● 2017-02-10 10:09:40
○ 2019-03-20 19:29:44
○ 2026-03-10 14:10:52
○MX21tech-com.mail.protection.outlook.com2015-07-25 → 2017-02-10 · 4 obs
● 2017-02-10 10:09:40
○ 2019-03-20 19:29:44
○ 2026-03-10 14:10:52
●MXus-smtp-inbound-1.mimecast.com2019-03-20 → 2026-03-10 · 3 obs
● 2019-03-20 19:29:44
● 2026-03-10 14:10:52
●MXus-smtp-inbound-2.mimecast.com2019-03-20 → 2026-03-10 · 3 obs
● 2019-03-20 19:29:44
● 2026-03-10 14:10:52
○A12.208.162.302015-07-25 → 2016-06-21 · 4 obs
● 2016-06-21 18:56:26
○ 2017-02-10 10:09:40
○ 2026-03-10 14:10:52
●A192.0.78.1522026-02-22 → 2026-03-10 · 3 obs
● 2026-02-22 06:36:58
● 2026-03-10 14:10:52
○A52.219.24.272019-03-20 → 2019-03-20 · 4 obs
● 2019-03-20 19:29:44
○ 2026-02-22 06:36:58
○ 2026-03-10 14:10:52
○A96.64.217.1092017-02-10 → 2017-02-10 · 4 obs
● 2017-02-10 10:09:40
○ 2019-03-20 19:29:44
○ 2026-03-10 14:10:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21tech.com | ns-28.awsdns-03.com, ns-670.awsdns-19.net, ns-1578.awsdns-05.co.uk, ns-1435.awsdns-51.org | 1 record |
✅ Authoritative Response
Server: 205.251.192.28
NS records: ns-28.awsdns-03.com, ns-670.awsdns-19.net, ns-1578.awsdns-05.co.uk, ns-1435.awsdns-51.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21tech.com (unsigned zone)
⏱️ Timing
Total: 810ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.0.78.152 |
| NS | 4 | ns-1435.awsdns-51.org, ns-1578.awsdns-05.co.uk... |
| MX | 2 | us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10) |
| TXT | 3 | 0ed1fe018a834e5f5b2cab4c308b761943c68c84, MS=ms63449091... |
| SOA | 1 | ns-1578.awsdns-05.co.uk awsdns-hostmaste |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-28.awsdns-03.com)
Analysis
IP Addresses
21tech.com resolves to one IP number: 192.0.78.152.
other host names including priyacomputers.in, atv.fi, j-c.de, sacjumc.com and baker-legal.com share IP numbers with 21tech.com.
Name Servers
21tech.com is delegated to four name servers: ns-28.awsdns-03.com, ns-670.awsdns-19.net, ns-1435.awsdns-51.org and ns-1578.awsdns-05.co.uk.
21tech.com at least partially shares name servers with other domains, for instance lookupcarrier.com, infinitiquickguide.com, d1bo9ecxduvp1i.cloudfront.net, d2y8qrlxpok35w.cloudfront.net and onelink-iot.com.
These name servers are commonly used with ns-1935.awsdns-49.co.uk, ns-836.awsdns-40.net and ns-1116.awsdns-11.org.
Host names with two IP numbers:
ns-28.awsdns-03.com points to 2600:9000:5300:1c00::1 and 205.251.192.28; ns-670.awsdns-19.net points to 2600:9000:5302:9e00::1 and 205.251.194.158; ns-1435.awsdns-51.org points to 2600:9000:5305:9b00::1 and 205.251.197.155; ns-1578.awsdns-05.co.uk points to 2600:9000:5306:2a00::1 and 205.251.198.42.
Mail Servers
Two mail servers handle 21tech.com: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
21tech.com shares the same mail server setup as other domains, for instance epicureanhotel.com, cte.idaho.gov, capgroupfinancial.com, rwcpas.com and millercocpas.com.
21tech.com shares at least partially some mail servers with other domains, including massreadymix.com, soundexchange.com and phx-mail.sendwordnow.com.
Host names with six IP numbers:
The host names us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com point to: 170.10.128.141, 170.10.128.221, 170.10.128.242, 170.10.132.141, 170.10.132.221 and 170.10.132.242.
Host names that point to 170.10.128.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
Host names that point to 170.10.128.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
Host names that point to 170.10.128.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
Host names that point to 170.10.132.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
Host names that point to 170.10.132.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
Host names that point to 170.10.132.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.